Do you need to get an ab workout in, but have no one around to to hold your feet? Then you need the Single Sit Up Bench. It comes with a bar to put your feet under, so you will be held in place while you do sit-ups. Sit-ups help strengthen your core muscles and tone your abs. Strong core muscles help relieve lower back pain. The Single Sit Up Bench is made from commercial grade material, making it perfect for use at outdoor parks. It is designed for use by individuals who are 13 years of age and up.